Manual

Engine Maintenance And Servicing Manual
(4). Knocking or hammering noise.
Cause Correction
a. Connecting rod bushing worn out (generally severe Check and service
knocking, may be relieved under load.)
b. Main bearing half shell worn out (booming or Check and service
knocking noise, may be relieved under load)
c. Piston knocking (apparent with engine cold) Check and service
d. Alternator or water pump accessories damaged Check and service
17. Engine is overheated.
Cause Correction
(1). No sufficient coolant in the cooling system Add coolant
(2). Thermostat damaged Replace
(3). Radiator core blocked or air inlet cogged Clean or replace radiator
(4). Radiator electrical fan or coolant temperature Check, service and replace
sensor abnormal
(5). Expansion tank pressure cap damaged Replace
(6). Water pump leaks or damaged Service or replace
(7). Ignition timing too late Adjust ignition timing
(8). Air exists in cooling system Bleeding the air
18. Engine is too cold
Cause Correction
(1). themostat damaged replace thermostat
(2). Water temperature sensor damaged replace water temperature sensor
19. Too much fuel consumption
Cause Correction
(1). Air filter blocked replace air filter core
(2). Too high idle speed adjust idle speed
(3). cylinder compression pressure decreases check engine
(4). Incorrect ignition timing adjust ignition timing
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn